The Filezilla secure FTP server works on the local LAN with private IP. The FTP server now is on the DMZ with a public IP. The client computer on the LAN can not access the the Filezilla FTP server. There seems to be initial connection looking at the server's log. Would you be able to trouble shoot ? Thanks. The following is from the server's log.
Done sending settings.
Closing all listening sockets
Creating listen socket on port 21...
Creating listen socket on port 21...
Failed to create listen socket on port 21
Listen socket port changed
(000006) 11/21/2007 10:14:23 AM - (not logged in) (192.168.1.202)> Connected, sending welcome message...
(000006) 11/21/2007 10:14:23 AM - (not logged in) (192.168.1.202)> 220 Authorized users only are allowed access to this server.
(000006) 11/21/2007 10:14:23 AM - (not logged in) (192.168.1.202)> ___
(000006) 11/21/2007 10:14:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000006) 11/21/2007 10:14:23 AM - (not logged in) (192.168.1.202)> could not send reply, disconnected.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> Connected, sending welcome message...
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 220 Authorized users only are allowed access to this server.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> ___
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> =_
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 9__GDuºm"s__Ç_x‘b_®Ð¾Q¨/ùœÏ$úIKrú_}
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> _
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> /
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> _
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> _
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 2
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> _
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> f
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 3
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> __
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000007) 11/21/2007 10:15:23 AM - (not logged in) (192.168.1.202)> disconnected.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> Connected, sending welcome message...
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 220 Authorized users only are allowed access to this server.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> ___
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> =_
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 9__GDuöœ_ÕG
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> V_ñFÀ_ôRÃhD_ _û
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> ªêÉfœÑ
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> _
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> /
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> _
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> _
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 2
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> 500 Syntax error, command unrecognized.
(000008) 11/21/2007 10:16:23 AM - (not logged in) (192.168.1.202)> could not send reply, disconnected.
000009) 11/21/2007 10:17:23 AM - (not logged in) (192.168.1.202)> Connected, sending welcome message...
(000009) 11/21/2007 10:17:23 AM - (not logged in) (192.168.1.202)> 220 Authorized users only are allowed access to this server.
(000009) 11/21/2007 10:17:23 AM - (not logged in) (192.168.1.202)> disconnected.
